The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 21, 1993
Filed:
Jun. 24, 1991
Applicant:
Inventors:
Jack P Honore, Trenton, NJ (US);
Fred W Verdi, Lawrenceville, NJ (US);
Assignee:
AT&T Bell Laboratories, Murray Hill, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05K / ;
U.S. Cl.
CPC ...
361633 ; 29846 ; 29850 ; 235488 ; 174257 ; 428901 ;
Abstract
A personal data card (10) is fabricated from a polymer thick-film circuit (12) formed of a polymer sheet (14) having a plurality of pads (16 and 17) and interconnecting paths (18) printed thereon with a copper-filled polymer ink. Each of a selected set of the pads (16) has a layer of nickel (22) applied to it, and then a layer of gold (24) applied above the nickel, to facilitate wire bonding of each of a plurality of aluminum leads (21), associated with a semiconductor die (19), to a corresponding pad. Use of such a polymer thick-film circuit (12) in the fabrication of the data card (10) reduces the cost of the card.